I have used GLM 4.7, 5 and 5.1 now for about 3 month via OpenCode harness and I don't remember it every being stuck in a loop.

You have to keep it below ~100 000 token, else it gets funny in the head.

I only use it for hobby projects though. Paid 3 EUR per month, that is not longer available though :( Not sure what I will choose end of month. Maybe OpenCode Go.

That's unfortunate. 70-80k tokens is roughly the point where I start wrapping up with giving agent required context even on the small to medium sized requests.

That would leave almost no tokens for actual work